"""
@author: xxw
@file: 2023-04-13-面向对象-三乐购物系统.py
@time: 2023/4/13 15:55
"""
# 用户类
# 实例属性：预算,用户名，密码，购物车
# 实例方法：
class User():
    def __init__(self, name, passwd, initial_amount):
        self.name = name
        self.passwd = passwd
        self.initial_amount = initial_amount
        self.shopping_car = {}


# 购物系统类
# 实例属性：商品信息，系统说明信息，当前用户--多个用户
# 方法：登录，注册，查看商品，添加购物车，结算
class ShoppingSystem():
    def __init__(self, goods_info, sys_info):
        self.goods_info = goods_info
        self.sys_info = sys_info
        self.userdict = {}

    def register(self, name, passwd, initial_amount):
        if name not in self.userdict:
            # 创建一个新用户，实例化User类
            user = User(name, passwd, initial_amount)
            # 把名字作为key，user对象作为value，存在self.userdict里面
            self.userdict[name] = user
        else:
            print("用户已存在")

    def login(self, name, passwd):
        if name in self.userdict and passwd == self.userdict[name].passwd:
            print("登录成功")
        else:
            print("账号或密码错误")

    def view_goods(self):
        print(self.goods_info)

    def add_shop(self):
        goods_id = input(f"请输入想添加的商品号:")

fruit_goods = {
    'F0001': {"name": "苹果", "price": 8},
    'F0002': {"name": "香蕉", "price": 4}
}

medicine_goods = {
    'M0001': {"name": "奥司他韦", "price": 60},
    'M0002': {"name": "抗病毒口服液", "price": 30}
}

system1 = ShoppingSystem(fruit_goods, "水果购物系统")
system2 = ShoppingSystem(medicine_goods, "药品购物")

system = [system1, system2]

while 1:
    print("当前平台，已有购物系统如下：")
    for k, v in enumerate(system):
        print(f"{k}.{v.sys_info}")
    c1 = input("请输入你的选择(按q退出)：")
    if c1 == "q":
        break
    if c1.isdigit() and int(c1) < len(system):
        c1 = int(c1)
        current_system = system[c1]
        print(f"欢迎进入{current_system.sys_info}".center(40, "*"))
        while 1:
            c2 = input("1.登录\n2.注册\n请输入你的选择(按q退出)")
            if c2 =="q":
                break
            if c2 == "1":
                username = input("请输入账号")
                passwd = input("请输入密码")
                current_system.login(username, passwd)
                c3 = input("1.查看商品信息\n2.添加购物车\n3.结算\n请输入你的选择(按q退出)")
                if c3 == "q":
                    break
                elif c3 == "1":
                    current_system.view_goods()
                elif c3 == "2":
                    current_system.add_shop(current_system)
                elif c3 == "3":
                    pass
                else:
                    break
                break


            elif c2 == "2":
                name, passwd, amount = input("请输入你的名字、密码、和初始金额(用空白分割)").split()
                current_system.register(name, passwd, amount)
                print(f"当前系统用户有:{current_system.userdict}")
            else:
                print("输入有误！")
    else:
        print("输入有误，请重新输入!")


